Face mask



FIG. 1 is a front perspective view of a face mask;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a front elevational thereof.

The broken lines in the drawings depict portions of the face mask that form no part of the claimed design. 

CLAIM The ornamental design for a face mask, as shown and described. 